In a recent profile, SB Nation focused on the practice squad players -- a group of players that, although signed to a team, are not on their main roster. In the NFL, there can be up to 10 of these players in addition to the 53-man roster, and they're typically not paid as much.

Don't get me wrong, from the outside it's still a lot of money -- in the 2018 season they had to be paid at least $7,600 per week, or $129,200 for the season -- but that's the sort of money that's supposed to float these players for an entire year, just like players on the actual roster (where the base salary can be a few times that).

And according to the former Seahawks quoted in the SB Nation article, expenses can add up.

Players on the practice squad have to be ready to move at a moment's notice, sometimes for reasons that have nothing to do with their performance as a player. Once they land, they're tasked with learning the playbook as fast as they can, finding their own housing (for an indeterminate amount of time), and attending practices, which sometimes entail extra practices for those not signed to the team.

And this can happen a lot in a season.

Tyvis Powell, signed to the Hawks following the 2016 NFL Draft and released in January 2017, moved from the 49ers to the Jets and back again, all during the 2018 season; he estimated spending about $15,000 just on relocation.

Rees Odhiambo, who was also drafted in the 2016 Draft to the Seahawks and waived in September 2018, moved four times during the 2018 season.

And the only thing the team helps with is a week in a hotel, during which time it's up to the players to secure their own housing.

"You're in a brand new location, and you've gotta learn the whole playbook that everyone else has had for the past few months," Odhiambo said to SB Nation.

"Outside of that, you have to cover finding a place to live, getting a car to drive, all the essentials. Even just getting a ride to the team facility — the team only covers you for the first day and after that you're on your own. You start working at six in the morning and you're back at six at night, and then you eat and study, and after that is the only time you have to find a place to live. That in-between time."

By SB Nation's metrics, there were 447 additions to the NFL practice squads after week 1 this season.

And that's just the start of the insanity of the demands piled on practice squad players. Read more in the full SB Nation story. Then click through the slideshow above to see how SeattlePI Seahawks reporter Ben Arthur graded each of the Hawks' positions looking back on the season.